Doping states of xPPP/yPA diblock copolymers  

作　　者：刘德胜 解士杰 梅良模 王鹿霞 韩圣浩 魏建华 

出　　处：《Science China Mathematics》2002年第5期648-654,共7页中国科学：数学（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China ( Grant Nos. 10074040 and 59871024).

摘　　要：A tight-binding model describing the xPPP/yPA diblock copolymer has been adopted.The ground states, doping states, configurations, electronic distributions and the types of excitations have been studied. It is found that the ratios and interfacial couplings of the components have effect on the properties of excitations in xPPP/yPA diblock copolymers. The interface between two homopolymers acts as an energy barrier which increases with the weakening of the interfacial coupling.A tight-binding model describing the xPPP/yPA diblock copolymer has been adopted. The ground states, doping states, configurations, electronic distributions and the types of excitations have been studied. It is found that the ratios and interfacial couplings of the components have effect on the properties of excitations in xPPP/yPA diblock copolymers. The interface between two homopolymers acts as an energy barrier which increases with the weakening of the interfacial coupling.

关 键 词：copolymers  DOPED excitations  INTERFACIAL coupling. 

分 类 号：O631[理学—高分子化学]